Shielding receptacle for battery cells

ABSTRACT

A thermally shielded receptacle for a rechargeable battery. The thermally shielded receptacle can include a material having a heat deflection rate of greater than 50 degrees Celsius to contain a catastrophic runaway of one or more of a plurality of individual battery cells. The thermally shielded receptacle can include material sized and shaped to receive the plurality of individual battery cells and separate each of the plurality of individual battery cells from adjacent individual battery cells.

This application claims the benefit of and hereby incorporates byreference U.S. Provisional Patent Application Ser. No. 62/010,921, filedJun. 11, 2014, with an attorney docket number 3712-049.PROV.

BACKGROUND

With an increase of portable equipment, transportation, andcommunication markets, the battery industry is continually expanding tomeet the increasing energy need. Typically, batteries can be broadlyclassified into two categories: primary batteries and secondarybatteries. A primary battery, also known as a disposable battery, can beused once until the battery is depleted, after which the disposablebattery can be replaced with a new battery. A secondary battery, alsoknown as a rechargeable battery, can be capable of repeated rechargingand reuse. Some advantages of rechargeable batteries are that they canbe cost effective, environmentally friendly, and easier to use comparedto disposable batteries.

While rechargeable batteries offer a number of advantages overdisposable batteries, rechargeable batteries also have severaldrawbacks. Typically, battery chemistries used for rechargeablebatteries tend to be less stable than battery chemistries used indisposable batteries. The relatively unstable chemistries ofrechargeable batteries can require special handling during fabrication.Additionally, rechargeable batteries such as lithium-ion cell batterieshave a higher risk of thermal runaway compared to cells of disposablebatteries. Thermal runaway can occur when an internal reaction rate of abattery cell increases beyond a point that heat generated by the cellcan be withdrawn, causing a further increase in both reaction rate andheat generation of the cell. Heat generated by a thermal runaway canlead to combustion of the battery as well as materials adjacent to thebattery. Causes of thermal runaway can include: a short circuit within abattery cell, improper cell use, physical abuse of a cell or battery,over charging, internal shorts, manufacturing defects, exposure of thecell to extreme external temperatures, non-functioning safety systems,and so forth.

When a battery experiences a thermal runaway, the battery may emit alarge quantity of smoke, flaming liquid electrolyte, and sufficient heatto cause combustion and destruction of materials adjacent to the cell.If a cell experiencing thermal runaway is adjacent to one or moreadditional cells, as can be typical in a battery pack, then the thermalrunaway event can cause a thermal runaway of multiple cells which, inturn, can lead to an increase in collateral damage.

BRIEF DESCRIPTION OF THE DRAWINGS

Features and advantages of the disclosure will be apparent from thedetailed description which follows, taken in conjunction with theaccompanying drawings, which together illustrate, by way of example,features of the disclosure; and, wherein:

FIG. 1 depicts a cross-sectional view of a battery in accordance with anexample;

FIG. 2 depicts an exploded view of a shielding receptacle sized andshaped to receive a plurality of individual battery cells in accordancewith an example;

FIG. 3 depicts an assembled view of a shielding receptacle sized andshaped to receive a plurality of individual battery cells in accordancewith an example;

FIG. 4 a depicts a shielding receptacle with a cell pocket that includesa swelling cavity in accordance with an example;

FIG. 4 b depicts a shielding receptacle with a cell pocket that includesa battery cell that has partially expanded into the swelling cavity inaccordance with an example;

FIG. 5 depicts an exploded view of a battery pack that includes ashielding receptacle in accordance with an example;

FIG. 6 depicts a wireless transfer station case in accordance with anexample;

FIG. 7 depicts another wireless transfer station case in accordance withan example;

FIG. 8 depicts a transferring of energy or data between a plurality ofwireless transfer coils in accordance with an example;

FIG. 9 a depicts another wireless transfer station case in accordancewith an example;

FIG. 9 b depicts another wireless transfer station case in accordancewith an example;

FIG. 10 depicts another wireless transfer station case in accordancewith an example;

FIG. 11 a depicts a wireless transfer station that includes one or moreresonant wireless transfer coils or one or more induction wirelesstransfer coils in accordance with an example;

FIG. 11 b depicts another wireless transfer station case in accordancewith an example;

FIG. 11 c depicts a wireless transfer station integrated into an objectin accordance with an example;

FIG. 11 d depicts a plurality of wireless transfer stations integratedinto an object in accordance with an example;

FIG. 12 depicts a wireless transfer station that can provide energy toone or more non-wire powered electronic devices or one or more rechargebatteries coupled to a device in accordance with an example;

FIG. 13 a depicts a device with a wireless transfer station coupled tothe device or integrated into the device in accordance with an example;

FIG. 13 b depicts a wireless transfer station with a plurality ofwireless transfer coils configured to transfer energy and/or data to anelectronic device with one or more integrated wireless transfer stationsin accordance with an example;

FIG. 14 a depicts a perspective view of the wireless transfer stationwith display in accordance with an example;

FIG. 14 b depicts a front view of the wireless transfer station withdisplay in accordance with an example;

FIG. 14 c depicts a side view of the wireless transfer station withdisplay in accordance with an example;

FIG. 15 depicts a top perspective view of the wireless transfer stationwith display in accordance with an example;

FIG. 16 depicts a side perspective view of a wireless transfer stationand a receptacle in accordance with an example;

FIG. 17 a depicts a wireless transfer station with a handle inaccordance with an example;

FIG. 17 b depicts a side perspective view of a wireless transfer stationcoupled to a receptacle in accordance with an example;

FIG. 18 a depicts a side perspective view of another wireless transferstation and a receptacle in accordance with an example;

FIG. 18 b depicts another side perspective view of a wireless transferstation coupled to a receptacle in accordance with an example;

FIG. 18 c depicts a back perspective view of a wireless transfer stationcoupled to a receptacle in accordance with an example;

FIG. 19 a depicts a side perspective view of wireless transfer stationand a receptacle in accordance with an example;

FIG. 19 b depicts another side perspective view of wireless transferstation and a receptacle in accordance with an example;

FIG. 19 c depicts a back perspective view of a wireless transfer stationwith a handle coupled to a receptacle in accordance with an example;

FIG. 19 d depicts a front perspective view of a wireless transferstation with a handle coupled to a receptacle in accordance with anexample;

FIG. 19 e depicts another side perspective view of a wireless transferstation with a handle coupled to a receptacle in accordance with anexample;

FIG. 20 a depicts a side perspective view of a wireless transfer stationand a receptacle in accordance with an example;

FIG. 20 b depicts a side perspective view of a wireless transfer stationand a receptacle in accordance with an example;

FIG. 20 c depicts a side perspective view of a wireless transfer stationwith a handle coupled to a receptacle in accordance with an example;

FIG. 21 depicts a wireless transfer station with an outer surface inaccordance with an example;

FIG. 22 a depicts a top perspective view of the wireless transferstation with a display in accordance with an example;

FIG. 22 b depicts an exploded view of the wireless transfer station witha display in accordance with an example;

FIG. 23 a depicts a top perspective view of the wireless transferstation with a pressure relief valve in accordance with an example;

FIG. 23 b depicts an exploded view of the wireless transfer station witha valve in accordance with an example;

FIG. 23 c depicts a top view of a valve in accordance with an example;

FIG. 23 d depicts a side view of a valve in accordance with an example;

FIG. 24 a depicts a bottom perspective view of the wireless transferstation with a molded seal in a seam of a wireless transfer station casein accordance with an example;

FIG. 24 b depicts a seam with a gasket molded or integrated into one ofthe pieces of the wireless transfer station case in accordance with anexample;

FIG. 25 depicts a wireless transfer station case in accordance with anexample;

FIG. 26 a depicts a bottom perspective view of the wireless transferstation with a molded seal in a seam of a wireless transfer station casein accordance with an example;

FIG. 26 b depicts a seam with a gasket molded or integrated into one ofthe pieces of a wireless transfer station in accordance with an example;

FIG. 27 depicts an exploded view of a battery pack for one or morebatteries in accordance with an example;

FIG. 28 depicts an exploded view of a battery pack for one or morerechargeable batteries in accordance with an example;

FIG. 29 depicts an exploded view of a thermally shielded receptacle fora rechargeable battery in accordance with an example;

FIG. 30 illustrates a diagram of a device in accordance with an example.

Reference will now be made to the exemplary embodiments illustrated, andspecific language will be used herein to describe the same. It willnevertheless be understood that no limitation of the scope of theinvention is thereby intended.

DETAILED DESCRIPTION

Before the present invention is disclosed and described, it is to beunderstood that this invention is not limited to the particularstructures, process steps, or materials disclosed herein, but isextended to equivalents thereof as would be recognized by thoseordinarily skilled in the relevant arts. It should also be understoodthat terminology employed herein is used for the purpose of describingparticular examples only and is not intended to be limiting. The samereference numerals in different drawings represent the same element.Numbers provided in flow charts and processes are provided for clarityin illustrating steps and operations and do not necessarily indicate aparticular order or sequence.

The terms battery, cell, and/or battery cell as used herein can be usedinterchangeably and can refer to any of a variety of different cellchemistries and configurations. In one embodiment the cell chemistriesand configurations can include, but are not limited to, lithium ion(e.g., lithium iron phosphate, lithium cobalt oxide, other lithium metaloxides, etc.), lithium ion polymer, nickel metal hydride, nickelcadmium, nickel hydrogen, nickel zinc, silver zinc, or other batterytype/configuration.

The term battery pack as used herein can refer to: multiple individualbatteries contained within a single piece housing or multi-piece housingand the individual batteries electrically interconnected to achieve aselected energy level and capacity.

Rechargeable batteries are produced in a number of variations. In oneexample, a rechargeable battery can be a lithium-ion based battery,which has a high energy density and uses a cobalt or nickel-cobalt oxideanode. One disadvantage of rechargeable batteries can be that therechargeable batteries can create their own internal supply of oxygenwhen the rechargeable batteries overheat. More specifically forlithium-ion based batteries, oxygen is liberated from the oxide materialof an anode of a lithium-ion based battery at elevated temperatures. Inone example, the elevated temperatures can have a variety of causes,such as an internal short circuit, overcharging, or other causes. Sinceoxygen and fuel are both internally available to the lithium-ion basedbattery cells, a fire can start within a single battery cell and can bedifficult to extinguish with conventional methods. In some cases thefire can continue until all the flammable materials in a battery packhave been exhausted.

There are several schemes to reduce a probability of a thermal runawayof rechargeable batteries. In one embodiment, a thermal runaway issuecan be reduced or eliminated by developing new cell chemistries and/ormodifying existing cell chemistries. In one example, to reduce aprobability of a thermal runaway of rechargeable batteries, thebatteries and/or battery packs can be designed to reduce possible causesof the thermal runaway. In one example, the batteries and/or batterypacks can be designed to reduce battery cells from shorting out duringstorage and/or handling. In another example, batteries or battery cellsof a battery pack can be properly stored, such as by insulating thebattery terminals and/or designed battery storage containers. Althoughcell chemistries and cell designs can reduce a probability of a thermalrunaway, currently cell chemistries and cell designs can only reduce,not eliminate, a probability of a thermal runaway.

When a cell enters into thermal runaway, the cell and/or battery packmay no longer be viable. In one embodiment, the battery pack can bedesigned to contain the thermal runaway event of a cell to minimize oreliminate the cell thermal runaway from affecting neighboring cells,potentially causing a cascading event of a thermal runaway of multiplecells.

In one embodiment, the battery pack can include a thermal runawaydetector to determine precursor events that increase a probability of athermal runaway. In another embodiment, the thermal runaway detector canbe a temperature-measuring device (such as a thermal couple) attached toeach battery cell to detect a thermal runaway of the cell by monitoringan internal temperature of the cell.

FIG. 1 shows a cross-sectional view of a battery 100, for example alithium ion battery utilizing an 18650 battery form-factor. The battery100 can include: a case 110, such as a cylindrical case, one or moreelectrodes 120, and a cap 130. In one embodiment, the case 110 can bemade of a metal, such as nickel-plated steel, that can be non-reactivewith battery materials, such as an electrolyte or the one or moreelectrodes 120. In one embodiment, a bottom surface 140 of the case 110can be seamlessly integrated with the remainder of the case 110. In oneembodiment, a top end 150 of the case 110 can be open ended. In anotherembodiment, the cap 130 can be located at the top end of the case 110.In another embodiment, the top end 150 can be a positive electricalterminal of the battery 100 and the bottom end 140 can be a negativeelectrical terminal. In one example, the positive electrical terminaland the negative electrical terminal of the battery 100 can be connectedto a wireless transfer station to provide energy to the wirelesstransfer station (as discussed in the proceeding paragraphs). In anotherembodiment, a plurality of batteries can be connected in series and/orin parallel. In one embodiment, the battery 100 can be connected to apower management module, such as the power management modules in FIGS.7, 9 a, and 9 b.

In one embodiment, the wireless transfer station can include one or morewireless transfer coils to transfer energy and/or data with otherwireless transfer stations. The wireless transfer coil can include oneor more power management modules to control the energy transfers and/ordata transfers with the other wireless transfer stations.

Examples of a wireless transfer station includes a wireless energyrechargeable battery pack, a wireless energy transfer platform and/ordata transceiver integrated into a medical cart, a wireless energytransfer platform and/or data transceiver integrated into an electronicdevice, a wireless energy transfer platform and/or data transceiverintegrated into a piece of furniture, a wireless energy transferplatform and/or data transceiver integrated into a plate mounted to awall, a wireless energy transfer platform and/or data transceiverintegrated into a device (such as a medical device or medicalequipment), and so forth.

In one example, the wireless transfer station can be a wireless energybattery pack that can be attached to a device, such as a medical cart ormedical equipment. The wireless transfer station that transfers energyand/or data with the device can also relay the energy and/or data withother devices and/or wireless transfer stations. These examples are notintended to be limiting. The wireless transfer station can beimplemented in a variety of electronic devices and mounting locations.

In one embodiment, thermal runaway of a cell in a battery, such as thecell shown in FIG. 1, can be caused a variety of different abusiveoperating or charging conditions and/or manufacturing defects. Thermalrunaway occurs where an amount of heat generated in a cell exceeds anamount of heat that can effectively be withdrawn from the cell. When theheat cannot be effectively withdrawn from the cell, a large amount ofthermal energy is rapidly released, heating the entire cell up to atemperature of 900 degrees Celsius or more and causing formations oflocalized hot spots that can reach temperatures exceeding 1500 degreesCelsius. Associated with the temperature increase of the thermalrunaway, gas can also be released causing a pressure within the cell toincrease.

Traditionally, when multiple cells are stacked together, it is difficultto remove heat from cells located in the inner part of the multiple cellstack and this configuration can cause localized cycling of the battery,which can lead to premature aging.

In one embodiment a shielding receptacle can be sized and shaped toreceive a plurality of individual battery cells (as in FIG. 2). Inanother embodiment, the shielding receptacle can include a plurality ofcell pockets and a plurality of walls along the exterior of theshielding receptacle (as in FIG. 2).

FIG. 2 shows an exploded view of a shielding receptacle 210 sized andshaped to receive a plurality of individual battery cells 220. FIG. 2further illustrates that the shielding receptacle can include aplurality of cell pockets 230 and a plurality of walls along theexterior of the shielding receptacle 210. In another embodiment, theshielding receptacle 210 can include four walls 240 and 250, where twoopposite walls are side walls 240 and two opposite walls are end walls250. In another embodiment, the end walls 250 of the shieldingreceptacle 210 can be substantially parallel to each other and the sidewalls 240 of the shielding receptacle 210 can be substantially parallelto each other. In another embodiment, the two side walls 240 can includeone or more openings or gaps 260. In another embodiment, the shieldingreceptacle 210 can include one or more walls along the interior of theshielding receptacle 220 (e.g. interior walls). In another embodiment,the cell pockets 230 can be located between at least two of the walls240, 250, and/or 220. In another embodiment, each cell pocket can beseparated from other cell pockets 230 by a shielding barrier 270. Inanother embodiment, a cell pocket 230 can be defined as a region betweenat least two shielding barriers 270 or by a region between a side wall240 or an end wall 250 and at least one shielding barrier 270.

In one embodiment, the side walls 240, end walls 250, interior walls220, and/or shielding barriers 270 can divide the interior of theshielding receptacle 210 into the plurality of cell pockets 230. Inanother embodiment, the shielding receptacle 210 can be formed usinginjection molding. In one example, the shielding receptacle 210 caninclude fixed cell pockets 230 where the shielding barriers 270 areintegrally formed with at least one of the walls 240, 250, and/or 220 ofthe shielding receptacle 210 as a one-piece construction. In anotherembodiment, the fixed cell pockets 230 can be integrally formed with twoopposing walls 240 or 250 (such as two side walls 240) as a one-piececonstruction. In another embodiment, the fixed cell pockets 230, allfour of the walls 240 and 250 (i.e., the two side walls 240 and the twoend walls 250), and the interior walls 220 are all a one-piececonstruction.

In another embodiment, the shielding receptacle 210 can comprise of sidewalls 240, end walls 250, and/or interior walls 220 with insertableshielding barriers 270 inserted between the side walls 240, end walls250, and/or interior walls 220. In another embodiment, the shieldingreceptacle 210 can comprise of side walls 240, end walls 250, and/orinterior walls 220 with insertable shielding barriers 270 and fixedshielding barriers 270.

In one embodiment, the cell pockets 230 can be substantially circular orspherical in form. In another embodiment, the cell pockets 230 can besubstantially rectangular in form. In another embodiment, each cellpocket 230 can form a substantially liquid-proof and/or air-proofcompartment.

In one embodiment, the cell pockets 230 can be oriented substantiallyparallel to the end walls 250 of the shielding receptacle 210. Inanother embodiment, the cell pockets 230 can be substantially parallelto the side walls 240 of the shielding receptacle 210. In anotherembodiment the shielding receptacle 210 can be a polymer, such as a hightemperature resistant polymer, that has a high heat deflection rate andis injection moldable. In one embodiment the shielding receptacle 210can be a polymer, such as a high temperature resistant polymer, that hasa high heat deflection rate and is injection moldable. FIG. 3 shows anassembled view of a shielding receptacle 310 sized and shaped to receivea plurality of individual battery cells as described in FIG. 2. FIG. 3is the same as FIG. 2 in all other aspects.

FIGS. 4 a and 4 b illustrate a shielding receptacle 410 with one or morecell pockets 420 with swelling cavities 430. A lithium-ion battery canhave a current limit, e.g. a maximum amount of current that can be putthrough a lithium-ion cell. In one example, when a lithium-ion batteryis being recharged and the recharge current exceeds the current limit,the lithium-ion battery can be overcharged. When a lithium-ion batteryis being overcharged, lithium can build up faster than the lithium canbe dissipated from a battery cell. When lithium builds up faster thanthe lithium can dissipate from a battery cell, metallic lithium platescan form on an anode of the battery cell and a cathode can become anoxidizing agent. When the metallic lithium plates form, the battery cellcan lose stability.

In one embodiment, when the metallic lithium plates form on the anodeand the cathode becomes an oxidizing agent and loses stability, thelithium-ion battery can emit warm gasses (e.g. heat) and cause thelithium ion battery to swell. In another embodiment, a battery pack caninclude a charging module to limit an amount of current duringrecharging of a battery cell and prevent overcharging the battery cell.In one example, when the charging module detects overcharging, thecharging module can stop the recharging of the battery pack.

FIGS. 4 a and 4 b show the shielding receptacle 410 that includes theswelling cavity or area 430 for a battery cell 440, such as a lithiumion battery, to swell or expand. In one example, the shieldingreceptacle 410 can have a swelling cavity 420 of dead space or air spacefor the battery 440 to expand or swell into. FIG. 4 a shows a shieldingreceptacle 410 with a cell pocket 420 that includes a swelling cavity430. FIG. 4 b shows a shielding receptacle 410 with a cell pocket 420that includes a battery cell 440 that has partially expanded into theswelling cavity 430. In another embodiment, the one or more of the cellpockets 420 can include one or more swelling cavities or areas 430 for abattery 440 to swell or expand into. In another embodiment, theshielding receptacle 410 can include a heat sink and/or thermal material450 to absorb heat emitted from a battery cell 440. In one example, thethermal material 450 can be heat shielding material integrated into theshielding receptacle and separating cell pocket. In another embodiment,a cell pocket of a shielding receptacle can be coated with heatresistive materials, such as an acrylonitrile butadiene styrenematerial.

FIGS. 4 a and 4 b further illustrate that the shielding receptacle 410can include one or more rows, such as rows 460, 470, and/or 480, of cellpockets 420. In one embodiment, one or more cell pockets 420 of a firstrow 460 can be offset from one or more cell pockets 420 of a second row470. In another embodiment, the one or more cell pockets 420 of theshielding receptacle 410 can be configured in a honeycomb pattern. Inone example, the honeycomb pattern can comprise of small chambers, eachcompletely separate from all other chambers. In another embodiment, theshielding receptacle 410 can be divided into an array of cell pockets420.

In one embodiment, one or more rows (such as rows 460 or 480) of cellpockets 420 can be located along an exterior wall 490 of the shieldingreceptacle 410 and one or more rows (such as rows 470) can be locatedbetween interior walls 492 of the shielding receptacle 410. In anotherembodiment, a cell pocket 420 and/or a shielding barrier can includecoolant channels. In another embodiment, a cell pocket 420 and/or ashielding barrier can include extinguishing materials.

In one embodiment, each cell pocket 420 can hold an individual batterycell 440. In another embodiment, the shielding receptacle 410 can alsoinclude a plurality of walls along the outer parameter of the shieldingreceptacle 410. In another embodiment, a battery pack can include one ormore shielding receptacles 410 with one or more cell pockets 420.

FIG. 5 shows an exploded view of a battery pack 510 that includes ashielding receptacle 520. In one embodiment, the battery pack cancomprise a housing 530. In another embodiment, the housing 530 cancomprise an outer surface 540 and an inner cavity 550. In anotherembodiment, the inner cavity 550 can be divided into a plurality ofsections or compartments. In another embodiment, the battery pack cancontain one or more battery energy cells 560, power management module570, and one or more wireless transfer coils 580. In another embodiment,the sections or compartments can include a battery bay 590, a powermanagement compartment 592, and/or a wireless transfer stationcompartment 594. In one embodiment, the shielding receptacle 520 and oneor more battery cells 560 can be located in the battery bay 590. In oneembodiment, one or more of the plurality of sections or compartments canbe separated by heat resistant or heat reflective material to reduceheat transfer between one or more of the sections or compartments. Inone embodiment, the power management module 570 can be located withinthe power management compartment 592.

In one embodiment, a wireless transfer station can be located in thewireless transfer station compartment 594. In one example, a wirelesstransfer station can include wireless transfer coils 580, such astransmitting coils and/or receiving coils, which can be coupled to thebattery pack 530 or integrated into the battery pack 530 and fullysealed or enclosed. In another embodiment, the wireless transfer stationcan be configured to transfer energy and/or data to another batterypack, another wireless transfer station, and/or a device using thewireless transfer coils 580. In one example, the battery pack 530 withthe integrated wireless transfer coils 580 can have no physicalelectrical contact points or physical electrical connection points forcharging the battery pack 530, communication information, data transfer,and/or power management control.

One advantage of separating the battery pack 530 into different sectionor compartments can be to disperse heat generated by components locatedin each compartment. In one example, one or more batteries or batterycells can be baked or prematurely aged when exposed to exterior heatfrom a battery pack component such as the power management module 570.

In one embodiment, the battery pack 530 can be completely sealed orhermetically sealed. In another embodiment, a battery pack can be sealedagainst water, solvents, cleaning supplies, dust, and other particulatesby hermetically sealing the battery pack. For example, a hermeticallysealed battery pack can be airtight, e.g. impervious to air and/or gas.

In one embodiment, the battery pack case can include an injection holeextending from the exterior surface of the battery pack to the innercavity of the battery pack. In one embodiment, the battery pack case canbe hermetically sealed by placing the battery energy cells, powermanagement module, the transmission coil, and/or the receiving coil inthe battery pack case and welding (such as ultrasonic welding) thebattery pack case closed. When the battery pack case is welded closed,material, such as a liquid or a foam, can be injected through theinjection hole to the battery pack case to encapsulate the batteryenergy cells, power management module, the transmission coils, and/orthe receiving coils in a waterproof material. In another embodiment, thebattery pack case can be a waterproof housing enclosure. In anotherembodiment, the battery pack case can be hermetically sealed by placingthe battery energy cells, power management module, the transmissioncoil, and/or the receiving coil in the battery pack case and using anO-ring to seal two or more pieces of the battery together. In anotherembodiment, the battery pack case can be sealed using a silicon overmold gasket around one or more seams of the battery pack case, such asexterior seams of the battery pack case.

FIG. 6 illustrates one exemplary embodiment of a wireless transferstation case 610. In one embodiment, the wireless transfer station canbe a battery pack. FIG. 6 further illustrates that the wireless transferstation case 610 can include a flat surface 620 along part of anexterior surface of a housing 630 of the wireless transfer station case610. In one embodiment, one or more wireless transfer coils 640 can beintegrated into the flat surface 620 of the wireless transfer stationcase 610 beneath the exterior surface. One advantage of a wirelesstransfer station case 610 with flat surface 620 along part of theexterior surface is that the one or more wireless transfer coils 640 ofthe wireless transfer station case 610 can abut next to a wirelesstransfer station with one or more wireless transfer coils to minimizethe distance between the one or more wireless transfer coils 640 of thewireless transfer station case 610 and the one or more wireless transfercoils of the wireless transfer station.

In one embodiment, the wireless transfer station case 610 can include aninjection hole 650 extending from the exterior surface of the wirelesstransfer station case 610 to an inner cavity of the wireless transferstation case 610. In one embodiment, the wireless transfer station case610 can be hermetically sealed by placing the battery energy cells,power management module, and/or the wireless transfer station (as shownin FIG. 1) in the wireless transfer station case 610 and welding (suchas ultrasonic welding) the wireless transfer station case 610 closed.When the wireless transfer station case 610 is welded closed, material,such as a liquid or a foam, can be injected into the injection hole 650of the wireless transfer station case 610 to encapsulate the batteryenergy cells, the power management module, and/or the wireless transferstation in a waterproof material.

Often, rechargeable batteries are used as a replenishable energy sourcefor electronic devices. In one embodiment, a battery pack can includeone or more rechargeable batteries. In one example, the one or morerechargeable batteries can be a lead-based battery, a lithium-basedbattery, a nickel based battery, or another type of chemical storagebattery. Traditionally, a rechargeable battery pack provides energy toan electronic device using physical electrically conductive connectionsbetween the rechargeable battery pack and the electronic device. Whenthe traditional rechargeable batteries of the rechargeable battery packare depleted, the rechargeable batteries can be replenished byconnecting physical electrically conductive contacts between therechargeable battery pack and a battery charger.

In one embodiment of the present invention, a wireless transfer stationcan receive energy and/or send energy to another device, such as anotherwireless transfer station, using a wireless energy transfer scheme (e.g.transfer energy without wires). A wireless energy transfer scheme can beany form of wireless energy transfer associated with the use of electricfields, magnetic fields, electromagnetic fields, and so forth thatallows electrical energy to be transmitted between two or more wirelesstransfer elements without using physical electrical contacts. In oneexample, a wireless energy transfer of wireless energy can be a transferof electrical energy from an energy source to an electrical load withoutthe use of interconnecting wires or physical electrical contacts.

In one embodiment, the wireless transfer station can include one or morewireless transfer coils to transfer energy and/or data with otherwireless transfer stations. The wireless transfer coil can include oneor more power management modules to control the energy transfers and/ordata transfers with the other wireless transfer stations.

Examples of a wireless transfer station includes a wireless energyrechargeable battery pack, a wireless energy transfer platform and/ordata transceiver integrated into a medical cart, a wireless energytransfer platform and/or data transceiver integrated into an electronicdevice, a wireless energy transfer platform and/or data transceiverintegrated into a piece of furniture, a wireless energy transferplatform and/or data transceiver integrated into a plate mounted to awall, a wireless energy transfer platform and/or data transceiverintegrated into a device (such as a medical device or medicalequipment), and so forth.

In one example, the wireless transfer station can be a wireless energybattery pack that can be attached to a device, such as a medical cart ormedical equipment. The wireless transfer station that transfers energyand/or data with the device can also relay the energy and/or data withother devices and/or wireless transfer stations. These examples are notintended to be limiting. The wireless transfer station can beimplemented in a variety of electronic devices and mounting locations.

In one embodiment, the wireless transfer station can receive data fromand/or send data or information to another device, such as anotherwireless transfer station, using a wireless data transfer scheme. Inanother embodiment, the wireless data transfer scheme can be any form ofdata transfer associated with a communications network. In anotherembodiment, the communications network can be a cellular network. Thecellular network can be configured to operate based on a cellularstandard, such as the third generation partnership projection (3GPP)long term evolution (LTE) Rel. 8, 9, 10, 11, or 12 standard, or theinstitute of electronic and electrical engineers (IEEE) 802.16p,802.16n, 802.16m-2011, 802.16h-2010, 802.16j-2009, or 802.16-2009standard.

In another embodiment, the communications network can be a wirelesslocal area network (such as a wireless fidelity network (Wi-Fi)) thatcan be configured to operate using a standard such as the IEEE802.11-2012, IEEE 802.11ac, or IEEE 802.11ad standard. In anotherembodiment, the communications network can be configured to operateusing a Bluetooth standard such as Bluetooth v1.0, Bluetooth v2.0,Bluetooth v3.0, or Bluetooth v4.0. In another embodiment, thecommunications network can be configured to operate using a ZigBeestandard, such as the IEEE 802.15.4-2003 (ZigBee 2003), IEEE802.15.4-2006 (ZigBee 2006), or IEEE 802.15.4-2007 (ZigBee Pro)standard. In another embodiment, the wireless data transfer scheme canbe any form of data transfer associated with electric fields, magneticfields, or electromagnetic fields that is transmitted between two ormore wireless transfer elements without using physical electricalcontacts.

In one embodiment, the wireless transfer station can include one or morewireless transfer elements. In one example, a wireless transfer elementcan be a wireless transfer coil. In one embodiment, the wirelesstransfer coil can be a coil used for transmitting and/or receivingenergy and/or data using magnetic inductance and/or magnetic resonance.

FIG. 7 illustrates a wireless transfer station 770. FIG. 7 furtherillustrates that the wireless transfer station 770 can include awireless transfer coil 720 and a power management module 730. In oneexample, the power management module 730 can convert energy receivedfrom an energy source, such as another wireless transfer station or analternating current (AC) energy outlet, a selected current level, aselected voltage level, and/or a selected wattage level. In anotherembodiment, the wireless transfer station 770 can include one or morebatteries, such as rechargeable batteries. In one embodiment, thewireless transfer coil 720 can comprise a transmitting coil and/or areceiving coil.

FIG. 8 illustrates an example of transferring energy or data between aplurality of wireless transfer coils 810 and 880. FIG. 8 furtherillustrates that one of the plurality of wireless transfer coils 810 canbe a transmitting coil 810 and another one of the plurality of wirelesstransfer coils 880 can be a receiving coil 880. In one embodiment,energy and/or data can be transferred from the transmitting coil 810 tothe receiving coil 880 by coupling the transmitting coil 810 with thereceiving coil 880 to enable the energy or data to be transferred over agap or distance. In one example, wireless energy can be transferred bygenerating a magnetic field 830 (such as an electromagnetic field) atthe transmitting coil 810 and positioning the receiving coil 880 withinthe magnetic field 830 to induce a current at the receiving coil 880.The process of inducing a current at the receiving coil is referred toas coupling the receiving coil 880 to the transmitting coil 810. In oneembodiment, the wireless transfer coil coupling for wireless energy ordata transfer can be a magnetic induction coupling. In anotherembodiment, the wireless transfer coil coupling for wireless energytransfer can be a magnetic resonant coupling.

In one embodiment, the transmitting coil 810 can be a transmittinginduction coil and the receiving coil 880 can be a receiving inductioncoil. The wireless transfer station can use a magnetic field to transferenergy between the transmitting coil 810 coupled to a first object (suchas a wireless transfer station) and a receiving coil 880 of a secondobject (such as another wireless transfer station) without any directcontact between the transmitting coil 810 and the receiving coil880,e.g. inductive coupling.

In one embodiment, inductive coupling can occur when the transmittingcoil 810 creates a magnetic field 830 (such as an alternatingelectromagnetic field) using an energy source, such as an alternatingcurrent (AC) energy outlet or a direct current (DC) battery. A currentcan be induced at the receiving coil 880 using the magnetic field whenthe receiving coil 880 is located within the magnetic field 830.

In one example, when the transmitting coil 810 and the receiving coil880 are within a threshold proximity distance, the transmitting coil 810and the receiving coil 880 can couple to form an electric transformer.In one embodiment, current from the receiving coil 880 can betransferred to a battery or an electronic device. In another embodiment,the current can be stored in one or more energy sources of the wirelesstransfer station, such as a battery. In another embodiment, the currentcan be transferred to a device coupled to the wireless transfer station.In one embodiment, an impedance of one or more transmitting coils 810can be substantially matched with an impedance of one or more receivingcoils 880.

In one embodiment, the transmitting coil 810 can be a transmittingresonant coil and the receiving coil 880 can be a receiving resonantcoil. A wireless resonant transfer can be a resonant transmission ofenergy or data between at least one transmitting coil 810 and at leastone receiving coil 880. In another embodiment, at least one transmittingcoil 810 and at least one receiving coil 880 can be tuned to resonate ata same frequency or a substantially same frequency.

In one example, resonant transmission of wireless energy can occur whenthe transmitting coil and the receiving coil are constructed to resonateat the same frequency or approximately the same frequency. Thetransmitting coil 810 can be configured to oscillate current at theresonant frequency of the coils to transfer energy and/or data. Theoscillating current of the transmitting coil 810 can generate anoscillating magnetic field at the selected resonant frequency of thereceiving coil. When the receiving coil 880 is positioned adjacent tothe oscillating magnetic field and constructed to operate at the samefrequency or substantially the same frequency as the transmitting coil810, the receiving coil 880 can receive energy and/or data from theoscillating magnetic field.

In another embodiment, an impedance of one or more transmitting coils810 can be substantially matched with an impedance of one or morereceiving coils 880 for energy and/or data transfer. In anotherembodiment, the transmitting coil and the receiving coil can bepositioned such that the receiving coil is within the near field of themagnetic field of the transmitting coil. The near field can be basedwithin the Fraunhofer region, which can be approximately within 1/8πtimes the wavelength of the electromagnetic field.

One advantage of placing the receiving coil within the near field forwireless energy transfer is to reduce an amount of energy that may beradiated or leaked from the wireless transfer coils 810 and 880, e.g.energy not received at the receiving coil 880. In one embodiment, energyin a magnetic field falls off as the inverse squared of a distance(1/d²) between the transmitting coil 810 and the receiving coil 880within the near field. In one example, magnetic resonant coupling can beused to transfer energy at relatively high energy levels between thetransmitting coil 810 and the receiving coil 880 and to minimize orreduce energy leaking away from the wireless transfer coils 810 and 880.

Another advantage of using a near field or a non-radiating field forwireless energy transfer can be that the near field or the non-radiatingfield can be used in areas adjacent to biological material, such ashumans or other biological entities, with minimal or no effects to thebiological material from the wireless energy transfer. In anotherembodiment, a wireless transfer station, such as in FIG. 7, can use aradio frequency (RF) signal, ultrasound, and/or laser beams towirelessly transfer energy and/or data between a transmitting device anda receiving device.

FIG. 9 a shows a wireless transfer station 910 that can include: awireless transfer coil 920, a power management module 930, and aconversion module 940. In one embodiment, the wireless transfer coil 920can be used for resonance coupling and/or induction coupling. In oneexample, the conversion module 940 can be coupled to the wirelesstransfer coil 920 and used to switch the wireless transfer coil 920 froma resonance mode (i.e. transferring wireless energy and/or data usingmagnetic resonance coupling) to an induction mode (i.e. transferringwireless energy and/or data using magnetic induction coupling), or viceversa.

In one embodiment, the wireless transfer coil 920 of the wirelesstransfer station 910 can be used for transmitting wireless energy and/orreceiving wireless energy. In one example, the conversion module 940 canbe coupled to the wireless transfer coil 920 and used to switch thewireless transfer coil 920 from a receiving mode (i.e. receivingwireless energy and/or data) to a transmitting mode (i.e. transmittingwireless energy and/or data), or vice versa.

In one embodiment, when the conversion module 940 of the wirelesstransfer station 910 is in the transmitting mode, the conversion module940 or the power management module 930 can convert energy received froman energy source (such as a power outlet or a battery) at a selectedvoltage into a high frequency alternating current and transmit the highfrequency alternating current to a wireless transfer coil of anotherwireless transfer station. The high frequency alternating current canflow through one or more loops of the wireless transfer coil 920 andcreate a varying magnetic field that can induce a current in the otherwireless transfer coil. In another embodiment, when the conversionmodule 940 is switched to the receiving mode, a varying magnetic fieldfrom another wireless transfer station can induce an alternating currentflowing through the one or more loops of the wireless transfer coil 920.The current flowing through the one or more loops can be converted intoa direct current (DC) by the conversion module 940 or the powermanagement module 930 and directed to a battery coupled to the wirelesstransfer station 910 or a device that is electrically coupled to thewireless transfer station 910.

In one embodiment, each wireless transfer coil 920 of a wirelesstransfer station 910 can be coupled to a separate conversion module 940.In another embodiment, one or more conversion modules 940 can be coupledto one or more selected groups of wireless transfer coils 920. Oneadvantage of using a conversion module 940 for switching a wirelesstransfer coil 920 between transmitting mode and receiving mode can be toreduce a complexity of design and/or size of a wireless transfer station910 by reducing a number of wireless transfer coils 920 used to transmitand/or receive wireless energy. Another advantage of using a conversionmodule 940 for switching a wireless transfer coil between a transmittingmode and receiving mode is to provide a dual functionality to a wirelesstransfer station of both transmitting and receiving wireless energy.

In one embodiment, the power management module 930 can include a currentinterrupt device (CID). In another embodiment, the power managementmodule 930 can include a poly switch temperature coefficient (PTC) thatcan break a current flow between one or more battery cells, the powermanagement module 930, and/or the wireless transfer coil 920 when atemperature of the one or more battery cells, the power managementmodule 930, and/or the wireless transfer coil 920 exceeds a selectedthreshold.

In one embodiment, each battery cell in the wireless transfer station910 can be connected to the power management module 930 using a currentline to monitor a current of each cell and a separate voltage line tomonitor a voltage of each cell. In one embodiment, the power managementmodule 930 can include chemical fuses to provide permanent circuitinterruption for selected events. In one embodiment, the chemical fusescan be controlled by the cell monitoring and cutoff circuits. When thechemical fuse is activated, the fuse can permanently disable thewireless transfer station 910 and prevent current flow. In one example,the selected events can include battery over-charge, over-current, ordeep discharge conditions. In another embodiment, the power managementmodule 930 can include a plurality of chemical fuses in parallel. Inanother embodiment, the wireless transfer station 910 can monitor thecharge and discharge vents to determine when to activate the chemicalfuse. In one example, the wireless transfer station 910 can determinewhen a discharge vent is open or closed. In one embodiment, when adischarge vent is closed when one or more battery cells are receivingcurrent, the power management module 930 can activate the chemical fuse.

In one embodiment, the wireless transfer coil 920 of the wirelesstransfer station 910 can be used for transmitting wireless energy and/orreceiving wireless energy. In one example, the conversion module 940 canbe coupled to the wireless transfer coil 920 and used to switch thewireless transfer coil 920 from a receiving mode (i.e. receivingwireless energy and/or data) to a transmitting mode (i.e. transmittingwireless energy and/or data), or vice versa.

In one embodiment, when the conversion module 940 of the wirelesstransfer station 910 is in the transmitting mode, the conversion module940 or the power management module 930 can convert voltage received froman energy source (such as an energy outlet or a battery) into a highfrequency alternating current and send the high frequency alternatingcurrent to a wireless transfer coil of another wireless transferstation. The high frequency alternating current can flow through one ormore loops of the wireless transfer coil 920 and create a magnetic fieldthat can be received by the other wireless transfer coil. In anotherembodiment, when the conversion module 940 is switched to the receivingmode, a magnetic field can generate current flowing through the one ormore loops of the wireless transfer coil 920. In another embodiment, thecurrent flowing through the one or more loops can be converted intodirect current (DC) by the conversion module 940 or the power managementmodule 930 and directed to a battery coupled to the wireless transferstation 910 or a coupled device to the wireless transfer station 910.

In one embodiment, each wireless transfer coil 920 of a wirelesstransfer station 910 can be coupled to a separate conversion module 940.In another embodiment, one or more conversion modules 940 can be coupledto one or more selected groups of wireless transfer coils 920. Oneadvantage of using a conversion module 940 for switching a wirelesstransfer coil 920 between transmitting mode and receiving mode can be toreduce a complexity of design and/or size of a wireless transfer station910 by reducing a number of wireless transfer coil 920 required totransmit and/or receive wireless energy. Another advantage of using aconversion module 940 for switching a wireless transfer coil between atransmitting mode and receiving mode is to provide a dual functionalityof a wireless transfer station of both transmitting and receivingwireless energy.

FIG. 9 b illustrates a wireless transfer station 950. FIG. 9 b furtherillustrates that the wireless transfer station 950 can include: awireless transfer coil 960; a power management module 970; and a battery980. The battery 980 can comprise a plurality of batteries, such asrechargeable batteries. In one example, the power management module 970can convert energy received using the wireless transfer coil 960 from anenergy source, such as another wireless transfer station or analternating current (AC) energy outlet, to a selected current level at aselected voltage level to provide a selected wattage level. In oneembodiment, the power management module can transfer the convertedenergy to the battery 980 to store the energy.

FIG. 10 shows a wireless transfer station 1010 that can include: awireless transfer coil 1020, a power management module 1030, acommunications module 1040, and/or a coordination module 1050. In oneembodiment, the wireless transfer station 1010 can communicate with oneor more other wireless transfer stations or one or more devices usingthe communication module 1040.

In one embodiment, the communication module 1040 of the wirelesstransfer station 1010 can use a communications network to communicatethe data to a device and/or another wireless transfer station. Inanother embodiment, the communications network can be a cellular networkthat may be a 3GPP LTE Rel. 8, 9, 10, 11, or 12 or IEEE 802.16p,802.16n, 802.16m-2011, 802.16h-2010, 802.16j-2009, 802.16-2009. Inanother embodiment, communications network can be a wireless network(such as a wireless fidelity network (Wi-Fi)) that may follow a standardsuch as the Institute of Electronics and Electrical Engineers (IEEE)802.11-2012, IEEE 802.11ac, or IEEE 802.11ad standard. In anotherembodiment, the communications network can be a Bluetooth connectionsuch as Bluetooth v1.0, Bluetooth v2.0, Bluetooth v3.0, or Bluetoothv4.0. In another embodiment, the communications network can be a ZigBeeconnection such as IEEE 802.15.4-2003 (ZigBee 2003), IEEE 802.15.4-2006(ZigBee 2006), IEEE 802.15.4-2007 (ZigBee Pro).

In one embodiment, the wireless transfer station 1010 can transferenergy to one or more other wireless transfer stations, receive energyfrom one or more other wireless transfer stations, and/or communicatedata or information with one or more other wireless transfer stations.In another embodiment, the coordination module 1050 of the wirelesstransfer station 1010 can coordinate when energy is transferred betweenwireless transfer stations and/or when data is communicated betweenwireless transfer stations. In another embodiment, the coordinationmodule 1050 can use the communications module 1040 to communicate withone or more other wireless transfer stations to coordinate energy and/ordata transfer between the wireless transfer station 1010 and the one ormore other wireless transfer stations.

One advantage of transferring energy and/or data using a wirelesstransfer station 1010 is to provide a single connection point betweenthe wireless transfer station 1010 and other wireless transfer stationsand/or other devices. Another advantage of transferring energy and/ordata using the wireless transfer station 1010 can be to enable a singlestep for both transferring energy between the wireless transfer station1010 and other wireless transfer stations and communicate or synchronizedata communicated between the wireless transfer station 1010 and otherwireless transfer stations. In one example, when a first wirelesstransfer station (such as a wireless transfer station integrated into amedical cart) is located adjacent to a second wireless transfer station(such as a wireless transfer station integrated into a plate mounted toa wall or a floor mat), the first wireless transfer station can bothreceive energy from the second wireless transfer station and synchronizeinformation with the second wireless transfer station.

In one embodiment, the coordination module 1050 can communicate with aconversion module, as in FIG. 9 a, to coordinate when one or morewireless transfer coils 1020 of the wireless transfer station 1010 cantransmit and/or receive wireless energy and/or data. In one example, thecoordination module 1050 communicates with a conversion module, as inFIG. 9 a, to coordinate transmitting and/or receiving wireless energyand/or data by coordinating when one or more wireless transfer coils1020 are in a transmitting mode or a receiving mode, as discussed in thepreceding paragraphs.

FIG. 11 a shows a wireless transfer station 1110 that includes one ormore resonant wireless transfer coils 1120 and/or one or more inductionwireless transfer coils 1130. In one example, the wireless transferstation 1110 can have a resonant wireless transfer coil 1120 and cantransfer energy to a resonant wireless transfer coil of a first wirelesstransfer station and can have an induction wireless transfer coil 1130and can transfer energy to an induction wireless transfer coil of asecond wireless transfer station. One advantage of the wireless transferstation having both resonant wireless transfer coils 1120 and inductionwireless transfer coils 1130 can be to provide energy and/or data towireless transfer stations and/or devices with only one of the resonantwireless transfer coils or the induction wireless transfer coils,thereby enabling more devices to transfer energy to the wirelesstransfer station.

In one embodiment, a device or another wireless transfer station caninclude one or more resonant wireless transfer coils and/or one or moreinduction wireless transfer coils. In one embodiment, the device or theother wireless transfer station receiving energy from the wirelesstransfer station 1110 can select whether to receive wireless energy fromthe one or more resonant wireless transfer coils 1120 or the one or moreinduction wireless transfer coils 1130 of the wireless transfer station1110. In another embodiment, the wireless transfer station 1110 can beconfigured to select whether to transmit wireless energy using the oneor more resonant wireless transfer coils 1120 or the one or moreinduction wireless transfer coils 1130. In one example, a resonanttransmitting coil and a resonant receiving coil pair can have a higherenergy transfer efficiency than an induction transmitting coil and aninduction receiving coil pair. In this example, when the device or theother wireless transfer station includes a resonant receiving coil, theother wireless transfer station and/or the device or the wirelesstransfer station 1110 can be configured to use one or more resonantwireless transfer coils to perform an energy transfer.

In one embodiment, the one or more resonant wireless transfer coils 1120and/or the one or more induction wireless transfer coils 1130 can betransmitting coils and/or receiving coils. In another embodiment, thewireless transfer station 1110 can include one or more repeater coils1140. In one example, the repeater coil 1140 can enhance wirelesslytransmitted energy of a transmitting coil, e.g. providing additionaltransmission energy. In another example, the repeater coil 1140 canreceive the wireless energy from a transmitting coil and relay orretransmit the received energy to another repeater coil 1140 or to areceiving coil. The repeater coils can be configured as inductiverepeater coils or resonant repeater coils, and associated with transmitcoils and receive coils of the same kind.

In one embodiment, the one or more resonant wireless transfer coils1120, the one or more induction wireless transfer coils 1130, and/or therepeater coil 1140 can include a power management module 1150 configuredto covert energy from an energy source to a varying magnetic field. Inanother embodiment, the one or more resonant wireless transfer coils1120, the one or more induction wireless transfer coils 1130, and/or therepeater coil 1140 can be coupled to a power management module 1150configured to convert a magnetic field into energy, such as energy at aselected current level, a voltage level, a wattage level, and/or anamperage level, and transfer the energy to a battery of the wirelesstransfer station 1110 or a device coupled to the wireless transferstation 1110.

FIG. 11 b illustrates one exemplary embodiment of the wireless transferstation 1110. In one embodiment, the wireless transfer station 1110 canbe a stand-alone device used to transfer wireless energy to otherdevices. In another embodiment, the wireless transfer station 1110 caninclude a wireless transfer coil 1120 and a power management module1130. In another embodiment, the wireless transfer station 1110 candirect energy received at the wireless transfer coil 1120 using thepower management module 1130 to a device coupled to the wirelesstransfer station 1110.

In another embodiment, the wireless transfer station 1110 can transferthe energy received at the wireless transfer coil 1120 to the coupleddevice using physical electrical contacts. In another embodiment, thewireless transfer station 1110 can transfer the energy to the coupleddevice using the wireless transfer coil 1120. In one embodiment, thewireless transfer station 1110 can store received energy at a battery1140.

FIG. 11 c illustrates one exemplary embodiment of the wireless transferstation 1110 integrated into an object 1120. In one embodiment, theobject 1120 that the wireless transfer station 1110 can be integratedinto can be an electronic device, such as a medical device or a wirelessenergy battery pack. In one example, the wireless transfer station 1110can be integrated into a medical infusion pump and provide energy to themedical infusion pump. In another embodiment, the object 1120 can beintegrated into a medical cart (such as a work surface of the medicalcart), a floor mat, a floor surface, a plate mounted to a wall, a wallsurface, chair railing, a room railing, a ceiling tile, a ceilingsurface, and so forth. FIG. 11 d illustrates that a plurality ofwireless transfer stations 1110 can be integrated into an object 1120.FIG. 5 d is the same as FIG. 5 c in all other aspects.

FIG. 12 shows a wireless transfer station 1210 that can provide energyto one or more non-wire powered electronic devices 1220 and/or one ormore rechargeable batteries 1240 coupled to a device 1230. In anotherembodiment, the wireless transfer station 1210 can provide energy todifferent types of non-wire powered electronic devices, such as amonitoring device, a computing device, a medical device, and so forth.In one example, the wireless transfer station 1210 can provide a unifiedenergy source for the devices 1220 and 1230 and/or the one or morerechargeable batteries 1240 coupled to the device 1230. In oneembodiment, a unified energy source can be a power source that canprovide power to a device, a wireless transfer station, and/or a batterywithout using different power connectors to provide the power to thedevice, the wireless transfer station, and/or the battery. In oneembodiment, the wireless transfer stations can include an integratedwireless energy coil and a physical electrical energy connectionterminal. In another embodiment, the wireless transfer station 1210 cantransfer energy via an electrical energy connection terminal and/or anintegrated wireless transfer coil.

FIG. 13 a shows a device 1320 with a wireless transfer station 1320coupled to the device 1310 or integrated into the device 1310. In oneembodiment, the wireless transfer station 1320 can be configured toprovide energy to batteries 1330 of the device 1310 and the batteries1330 can provide energy to the device 1310. In another embodiment, thewireless transfer station 1320 can be configured to provide energydirectly to the device 1310, e.g. without using batteries. In oneexample, a power management module 1340 can provide energy directly tothe device 1310 by receiving energy at a wireless transfer coil 1350 ofthe wireless transfer station 1310 from a wireless transfer coil ofanother wireless transfer station and direct the energy via the powermanagement module 1340 to the device 1310 and/or the batteries 1330.

FIG. 13 b illustrates a wireless transfer station 1310 with a pluralityof wireless transfer coils 1330 configured to transfer energy and/ordata to an electronic device 1320, such as a medical device. The medicaldevice can include one or more integrated wireless transfer stations1340. In one embodiment, the electronic device 1320 can be locatedadjacent to the wireless transfer station 1310. For example, a bottomsurface of the electronic device 1320 can abut a top surface of thewireless transfer station 1310.

FIGS. 14 a, 14 b, and 14 c show a wireless transfer station 1410 with adisplay 1420. FIG. 14 a shows a perspective view of the wirelesstransfer station 1410 with display 1420. FIG. 14 b shows a front view ofthe wireless transfer station 1410 with display 1420. FIG. 14 c shows aside view of the wireless transfer station 1410 with display 1420. FIGS.14 a, 14 b, and 14 c provide different views of the wireless transferstation 1410 with the display 1420 and the wireless transfer station1410 and the display 1420 shown in FIGS. 14 a, 14 b, and 14 c are thesame in all other regards. In one embodiment, FIGS. 14 a, 14 b, and 14 cshow a display 1420 that can include one or more lighting sources 1430,such as light emitting diodes (LEDs), that can be integrated into thebattery pack handle 1440 to indicate an energy level of the wirelesstransfer station 1410. In one embodiment, the display 1420 can indicatethe energy level information of the wireless transfer station 1410 inselected increments, such as 5 percent energy level increments. In oneexample, the display 1420 can have 20 LEDs 1430 integrated into thewireless transfer station 1410 handle that can provide 5 percent energylevel increment indications. In this example, when the wireless transferstation 1410 is at a full energy level, the 20 LEDs 1430 integrated intothe handle 1440 of the wireless transfer station 1410 can each beilluminated. As the energy level of the wireless transfer station 1410decreases, the 20 LEDs 1430 integrated into the handle 1440 cansequentially stop illuminating as the wireless transfer station 1410decreases in energy at 5 percent increments.

In one embodiment, a brightness level, an illumination level, and/or thecolor of the one or more lighting sources integrated into the handle1440 can be adjusted by the wireless transfer station 1410 based onselected illumination criteria. In one example, the selectedillumination criteria can include a time of day, a location of thewireless transfer station 1410, a type of device that the wirelesstransfer station 1410 is attached to, a current energy level of thewireless transfer station 1410, when the wireless transfer station 1410is receiving a charge, when the wireless transfer station 1410 istransferring energy, and so forth. In another example, the display 1420can be a night light to indicate the location of the wireless transferstation 1410 during low light conditions and/or provide illuminatinglight to a surrounding environment during low light conditions.

In one embodiment, an optically viewable portion (as discussed in thepreceding paragraphs) of the wireless transfer station 1410 can belocated at a selected location on the handle 1440 with the display 1420located beneath the optically viewable portion. In another embodiment,the display 1420 can be flush with an exterior surface of the wirelesstransfer station 1410 and can be located at a selected location on thehandle 1440.

In one embodiment, one or more of the displays of a wireless transferstation can be a liquid crystal display (LCD), a resistive LCD display,a capacitive LCD display, a light emitting diode (LED) display, a liquidcrystal on silicon (LCOS) display, an organic LED (OLED) display, anactive-matrix OLED (AMOLED) display, a touch screen display, a hapticdisplay, and/or a tactile display. In another embodiment, the one ormore displays can be configured to display one or more colors, such asdifferent colors based on the selected energy information.

FIG. 15 shows a top perspective view of the wireless transfer station1510 with display 1520. In one embodiment, the display 1520 that caninclude one or more lighting sources, such as a liquid crystal display(LCD), that can be integrated into an outer surface 1530 of the wirelesstransfer station 1510 to indicate selected information of the wirelesstransfer station 1510. In another embodiment, the display 1520 can runalong a portion of a vertical axis 1540 of the wireless transfer station1510. In another embodiment, the display 1520 can be substantially flushwith the outer surface 1530 and form a hermetic seal with the outersurface 1530.

FIG. 16 shows a side perspective view of a wireless transfer station1610 and a receptacle 1620. In one embodiment, the receptacle 1620 caninclude one or more wireless transfer coils 1630 used to transfer energybetween a wireless transfer station 1610 and the receptacle 1620, adevice, or another wireless transfer station. In one embodiment thereceptacle 1620 can be shaped and formed to align one or more wirelesstransfer coils of the wireless transfer station 1610 with the one ormore wireless transfer coils 1630 of the receptacle 1620. In oneembodiment, the receptacle 1620 can be shaped and formed to receivewireless transfer stations of different shapes and/or sizes and alignone or more wireless transfer coils of the wireless transfer stations ofdifferent shapes and/or sizes with the one or more wireless transfercoils 1630 of the receptacle 1620. In one embodiment the receptacle 1620can be integrated into another wireless transfer station, such as aplate mounted to a wall or a floor mat.

FIG. 17 a shows a back perspective view of a wireless transfer station1710 coupled to a receptacle 1720 with one or more wireless transfercoils 1730. FIG. 17 a further shows that the wireless transfer station1710 can include a handle 1740. In one embodiment, the handle 1740 canbe integrated into the wireless transfer station 1710 or molded into thewireless transfer station 1710. The wireless transfer station 1710 andreceptacle 1720 shown in FIG. 17 a are substantially similar to thewireless transfer station 1610 and the receptacle 1620 shown in FIG. 16in all other aspects. FIG. 17 b shows a side perspective view of awireless transfer station 1750 coupled to a receptacle 1760. Thewireless transfer station 1750 and receptacle 1760 shown in FIG. 17 bare the same as the wireless transfer station 1610 and the receptacle1620 shown in FIG. 16.

FIG. 18 a shows a side perspective view of another wireless transferstation 1810 and a receptacle 1820. In one embodiment, the receptacle1820 can include one or more wireless transfer coils 1830 used totransfer energy between a wireless transfer station 1810 and thereceptacle 1820, a device, or another wireless transfer station. In oneembodiment the receptacle 1820 can be shaped and formed to align one ormore wireless transfer coils of the wireless transfer station 1810 withthe one or more wireless transfer coils 1830 of the receptacle 1820. Inone embodiment, the receptacle 1820 can be shaped and formed to receivewireless transfer stations of different shapes and/or sizes and alignone or more wireless transfer coils of the wireless transfer stations ofdifferent shapes and/or sizes with the one or more wireless transfercoils 1830 of the receptacle 1820. In one embodiment the receptacle 1820can be integrated into another wireless transfer station, such as aplate mounted to a wall or a floor mat. The wireless transfer station1810 and receptacle 1820 shown in FIG. 18 a have a different size andshape to the wireless transfer station and the receptacle shown in FIGS.16 and 17 b and are the same in all other aspects. FIG. 18 b shows aside perspective view of a wireless transfer station 1810 coupled to areceptacle 1820. The wireless transfer station 1810 and receptacle 1820shown in FIG. 18 b have a different size and shape to the wirelesstransfer station and the receptacle shown in FIGS. 16 and 17 b and arethe same in all other aspects. FIG. 18 c shows a back perspective viewof a wireless transfer station 1840 coupled to a receptacle 1850. FIG.18 c further shows that the wireless transfer station 1840 can include ahandle 1870. In one embodiment, the handle 1870 can be integrated in tothe wireless transfer station 1870. In one embodiment, the receptacle1850 can include one or more wireless transfer coils 1860 used totransfer energy between a wireless transfer station 1840 and thereceptacle 1850, a device, or another wireless transfer station. Thewireless transfer station 1840 and receptacle 1850 shown in FIG. 18 chave a different size and shape to the wireless transfer station and thereceptacle shown in FIG. 17 a and are the same in all other aspects.

FIG. 19 a shows a side perspective view of a wireless transfer station1910 and a receptacle 1920. In one embodiment, the wireless transferstation 1910 can include a handle 1940. In one embodiment, the handle1940 can be integrated into the wireless transfer station 1910. In oneembodiment, the receptacle 1920 can include one or more wirelesstransfer coils 1930 used to transfer energy between a wireless transferstation 1910 and the receptacle 1920, a device, or another wirelesstransfer station. In one embodiment the receptacle 1920 can be shapedand formed to align one or more wireless transfer coils of the wirelesstransfer station 1910 with the one or more wireless transfer coils 1930of the receptacle 1920. In one embodiment, the receptacle 1920 can beshaped and formed to receive wireless transfer stations of differentshapes and/or sizes and align one or more wireless transfer coils of thewireless transfer stations of different shapes and/or sizes with the oneor more wireless transfer coils 1930 of the receptacle 1920. In oneembodiment the receptacle 1920 can be integrated into another wirelesstransfer station, such as a plate mounted to a wall or a floor mat.

FIG. 19 b shows a side perspective view of a wireless transfer station1910 with a handle 1940 coupled to a receptacle 1920. The wirelesstransfer station 1910 and receptacle 1920 shown in FIG. 19 b is the sameas the wireless transfer station 1910 and receptacle 1920 shown in FIG.19 a. FIG. 19 c shows a back perspective view of a wireless transferstation 1910 with a handle 1940 coupled to a receptacle 1920. In oneembodiment, the receptacle 1910 can include one or more wirelesstransfer coils 1930 used to transfer energy between a wireless transferstation 1910 and the receptacle 1920, a device, or another wirelesstransfer station. The wireless transfer station 1910 and receptacle 1920shown in FIG. 19 c is the same as the wireless transfer station 1910 andreceptacle 1920 shown in FIGS. 19 a and 19 b. FIG. 19 d shows a frontperspective view of a wireless transfer station 1910 with a handle 1940coupled to a receptacle 1920. The wireless transfer station 1910 andreceptacle 1920 shown in FIG. 19 d is the same as the wireless transferstation 1910 and receptacle 1920 shown in FIGS. 19 a, 19 b, and 19 c.FIG. 19 e shows a side perspective view of a wireless transfer station1910 with a handle 1940 coupled to a receptacle 1920. The wirelesstransfer station 1910 and receptacle 1920 shown in FIG. 19 e is the sameas the wireless transfer station 1910 and receptacle 1920 shown in FIGS.19 a, 19 b, 19 c, and 19 d.

FIG. 20 a shows a side perspective view of wireless transfer station2010 and a receptacle 2020. In one embodiment, the wireless transferstation 2010 can include a handle 2040. In another embodiment, thehandle 2040 can rotate on a hinge 2050 to enable the handle 2040 to movebetween a plurality of positions. In one example, the handle can rotateon the hinge 2050 to an open position for lifting or carrying, as shownin FIG. 20 a. In another example, the handle can rotate on the hinge2050 to a closed position for a compact form for use, as shown in FIG.20 c and discussed in the proceeding paragraphs. In another embodiment,the wireless transfer station 2010 can include a handle receiver 2060 toreceive the handle 2040 when the handle 2040 is in a closed position. Inanother embodiment, the handle receiver 2060 can be a recess or a cavityin an outer surface of the wireless transfer station 2010 to enable thehandle 2040 to be substantially flush with the remainder of the outersurface of the wireless transfer station 2010. In another embodiment,the handle receiver 2060 can include a lifting recess 2070 configured toenable a user of the wireless transfer station 2010 to lift or grasp thehandle 2040 when the handle 2040 is in a closed position. In oneexample, when the handle 2040 is in a closed position, the user canslide a finger into the lifting recess 2070 and lift the handle 2040 tomove the handle to an open position. One advantage of the hinge handle2040 with the handle receiver 2060 is that the handle 2040 is compactand substantially seamless with the outer surface of the wirelesstransfer station 2010 when the handle is in a closed position andprovides a user a handle to lift or carry the wireless transfer station2010 when the handle is in an open position.

FIG. 20 a further shows the receptacle 2020 can include one or morewireless transfer coils 2030 used to transfer energy between a wirelesstransfer station 2010 and the receptacle 2020, a device, or an otherwireless transfer station. In one embodiment the receptacle 2020 can beshaped and formed to align one or more wireless transfer coils of thewireless transfer station 2010 with the one or more wireless transfercoils 2030 of the receptacle 2020. In one embodiment, the receptacle2020 can be shaped and formed to receive wireless transfer stations ofdifferent shapes and/or sizes and align one or more wireless transfercoils of the wireless transfer stations of different shapes and/or sizeswith the one or more wireless transfer coils 2030 of the receptacle2020. In one embodiment the receptacle 2020 can be integrated intoanother wireless transfer station, such as a plate mounted to a wall ora floor mat.

FIG. 20 b shows a side perspective view of a wireless transfer station2010 with a handle 2040. The wireless transfer station 2010 shown inFIG. 33 b is the same as the wireless transfer station 2010 shown inFIG. 20 a. FIG. 20 c shows a side perspective view of a wirelesstransfer station 2010 with a handle 2040 coupled to a receptacle 2020.The wireless transfer station 2010 and receptacle 2020 shown in FIG. 20c is the same as the wireless transfer station 2010 and receptacle 2020shown in FIGS. 20 a and 20 b.

FIG. 21 shows a wireless transfer station 2110 with an outer surface2120. In one embodiment, the outer surface 2120 of the wireless transferstation 2110 can include a perforated label 2130 to provide forventilation of gas when an internal pressure of the wireless transferstation 2110 exceeds a selected threshold. In one embodiment, theperforated label can be a one-way label to restrict fluids from enteringthe wireless transfer station 2110 and enable moisture to be wicked awayor released from wireless transfer station 2110.

FIG. 22 a shows a top perspective view of the wireless transfer station2210 with a display 2220. In one embodiment, FIG. 22 a shows a display2220 that can include one or more lighting sources, such as a liquidcrystal display (LCD), that can be integrated into an outer surface 2230of the wireless transfer station 2210 to indicate selected informationof the wireless transfer station 2210. In one embodiment, the display2220 can indicate the energy level information of the wireless transferstation 2210 in selected increments, such as 5 percent energy levelincrements. In one embodiment, the display 2220 can be substantiallyflush with the outer surface 2230 and form a hermetic seal with theouter surface 2230.

FIG. 22 b shows an exploded view of the wireless transfer station 2210with a display 2220. In one embodiment, the wireless transfer station2210 can be a waterproof housing enclosure. In another embodiment, thewireless transfer station 2210 can be hermetically sealed. In oneexample, the wireless transfer station 2210 can be hermetically sealedby placing wireless transfer station components, such as battery energycells, a power management module, and/or a wireless transfer coil in thewireless transfer station 2210 and sealing a top piece 2230 and a bottompiece 2240 together. In another embodiment, the wireless transferstation 2210 can include more than two pieces that can be sealedtogether.

In one embodiment, the battery pack case can provide for outgassing of abattery. In an example of lead acid batteries, when a battery is beingcharged, e.g. the battery is under charge, a charge current can begreater than the current needed to maintain a full state of chargebecause of chemical inefficiencies of electrolyzes and an internalresistance of battery cells. The level of charge current can create anexcess of charged electrolyzes in water with an electrolyte mix ofsulfuric acid. The charged electrolyzes can free hydrogen and oxygenfrom the water. In one embodiment, the battery pack case can outgas thehydrogen and/or oxygen from the battery pack case. In one embodiment,the battery pack case can include ventilation to emit the free hydrogenand oxygen from the battery to prevent an accumulation of hydrogenand/or oxygen. In one embodiment, the battery pack case can include oneor more internal air gaps to provide internal ventilation for gasreleased from one or more battery cells. In another embodiment, thebattery pack case can also include one or more vents to release gas fromone or more battery cells or the internal air gaps to the exterior ofthe battery pack.

In one embodiment, the battery pack case can include an escape valve tovent gas. In another embodiment, the battery pack case can include aone-way valve or disc to release gas or pressure while maintaining ahermetic seal. In another embodiment, the battery pack case can includea perforated label to provide for ventilation of gas when an internalpressure of the battery pack case exceeds a selected threshold. In oneembodiment, the perforated label can be a one-way label to restrictfluids from entering the battery pack case and enable moisture to bewicked away or released from the battery pack case. In one embodiment,the battery pack can include a moisture detection module configured todetect when moisture within the battery pack case exceeds a selectedlevel. In one embodiment, the battery pack case can include a label withinclude on or more weakened areas of the label to enable the label toexpel gas and/or pressure when the internal pressure exceeds a selectedthreshold while maintaining a hermetic seal.

FIG. 23 a shows a top perspective view of the wireless transfer station2310 with a pressure relief valve 2340. In one embodiment, the wirelesstransfer station 2310 can include a pressure relief valve 2340 or anescape valve to vent gas. In another embodiment, the battery pack casecan include a one-way valve or disc to release gas or pressure whilemaintaining a hermetic seal.

FIG. 23 b shows an exploded view of the wireless transfer station 2310with a valve 2340. In one embodiment, the valve 2340 can be a pressurerelief valve. In one embodiment, the wireless transfer station 2310 canbe a waterproof housing enclosure. In another embodiment, the wirelesstransfer station 2310 can be hermetically sealed. In one example, thewireless transfer station 2310 can be hermetically sealed by placingwireless transfer station components, such as battery energy cells,power management module, and/or a wireless transfer coil in the wirelesstransfer station 2310 and sealing a top piece 2320 and a bottom piece2330 together. In another embodiment, the wireless transfer station 2310can include more than two pieces that can be sealed together. In anotherembodiment, the valve 2340 can be attached to the bottom piece 2330 orintegrated into a surface 2350 of the bottom piece 2330.

FIGS. 23 c and 23 d show one exemplary embodiment of a valve 2340, asshow in FIGS. 23 a and 23 b. FIG. 23 c shows a top view of the valve2340. In one embodiment, the valve 2340 can be a pressure relief valve.In another embodiment, the valve 2340 can be made of rubber or otherelastomeric material that is resiliently deformable. In one embodiment,a portion of the valve 2340 can include one or more openings 2380extending through the valve 2340, such as for relieving pressure. FIG.23 d shows a side view of a valve 2340. In one embodiment, the valve2340 can be one piece and comprise an inverted substantiallyumbrella-shaped or substantially dish-shaped portion 2360 that canengage inside a surface 2350 of the bottom piece 2330 of the wirelesstransfer station 2310 around an opening 2370.

FIG. 24 a shows a bottom perspective view of the wireless transferstation 2410 with a molded seal in a seam of a wireless transfer stationcase 2420. In one embodiment, the wireless transfer station case 2420can include two or more pieces that can be sealed together, as discussedin the preceding paragraphs and shown in FIGS. 22 b and 23 b. In anotherembodiment, the wireless transfer station 2410 can be sealed using agasket, such as a silicon over mold gasket, around one or more seams2430 of the wireless transfer station 2410, such as exterior seams ofthe wireless transfer station 2410. FIG. 24 b shows a seam 2430 with agasket 2440 molded or integrated into one of the pieces of the wirelesstransfer station case 2420 and used to seal the wireless transferstation case 2420 when the pieces of the wireless transfer station case2420 are put together. In one embodiment, the gasket 2440 can run alonga channel 2450 of the seam 2430.

FIG. 25 shows an exploded view of a wireless transfer station 2510. Inone embodiment, the wireless transfer station 2510 can be a waterproofhousing enclosure. In another embodiment, the wireless transfer station2510 can be hermetically sealed. In one example, the wireless transferstation 2510 can be hermetically sealed by placing wireless transferstation components, such as battery energy cells, a power managementmodule, and/or a wireless transfer coil in the wireless transfer station2510 and sealing a top piece 2520 and a bottom piece 2530 together. Inanother embodiment, the wireless transfer station 2510 can include morethan two pieces that can be sealed together.

In one embodiment, the wireless transfer station 2510 can be awaterproof housing enclosure. In another embodiment, the wirelesstransfer station 2510 can be hermetically sealed by placing the batteryenergy cells, a power management module, and/or the wireless transferstation in the wireless transfer station 2510 and using an O-ring toseal two or more pieces, such as top piece 2520 and bottom piece 2530,of the wireless transfer station 2510 together.

FIG. 26 a shows a bottom perspective view of the wireless transferstation 2610 with a molded seal in a seam of a wireless transfer stationcase 2620. In one embodiment, the wireless transfer station case 2620can include two or more pieces that can be sealed together, as discussedin the preceding paragraphs and shown in FIG. 3. In another embodiment,the wireless transfer station 2610 can be sealed using a gasket, such asa silicon over mold gasket, around one or more seams 2630 of thewireless transfer station 2610, such as exterior seams of the wirelesstransfer station 2610.

FIG. 26 b shows a seam 2630 with a gasket 2640 molded or integrated intoone of the pieces of a wireless transfer station 2620 (as shown in FIG.26 a). In one embodiment, the gasket 2640 can be used to seal thewireless transfer station 2620 when a plurality of pieces of thewireless transfer station 2620 are put together. In one embodiment, thegasket 2640 can run along a channel 2650 of the seam 2630.

In one embodiment, the wireless transfer station is non-sealed ornon-hermetically sealed. In another embodiment, as discussed in thepreceding paragraphs, the wireless transfer station can be sealed tominimize or eliminate the adhesion and/or growth of potential pathogensor hazard materials. In another embodiment, when a wireless transfercoil is incorporated into the wireless transfer station, a need forexposed electrical connectors, exposed wires, or other unsealed portionsof the battery pack can be reduced or eliminated.

One advantage of using a sealed wireless transfer station, such as asealed a battery pack, can be to reduce or eliminate the retransmissionor spreading of pathogens, such as bacterium, viruses, prion, or fungus,in a medical environment by minimizing or eliminating crevasses or seamswhere pathogens can adhere and/or grow. In one example, when atraditional battery pack and/or a device with an attached traditionalbattery pack is located in an area of a medical facility, such as apatient's room, and the traditional battery pack is moved to anotherarea of the medical facility, such as another patient's room, pathogensadhere to surfaces of the traditional battery packs, such as at theseams or crevices and/or physical electrical contacts of the traditionalbattery pack. In one embodiment, the sealed wireless transfer stationcan reduce or eliminate the retransmission of pathogens by reducing oreliminating crevices, seams, and physical electrical contacts of thewireless transfer station. In one embodiment, the wireless transferstation can be sealed with an anti-bacterial material to reduce oreliminate the adherence of pathogens on the surface of the battery pack.In another embodiment, the wireless transfer station can be sealed orencased with waterproof and/or dustproof material.

Additionally, a traditional battery pack with electrical contacts forreceiving and/or transferring energy cannot be fully cleaned because anantibacterial cleaning solution can erode the electrical contacts and/orleak into the unsealed parts of the traditional battery pack. Oneadvantage of a sealed wireless transfer station with wireless transfercoils for transferring energy and/or data can be to enable a user towash and/or clean the sealed wireless transfer station withantibacterial materials, such as an antibacterial cleaning solution.

In one embodiment, a case of the wireless transfer station can comprise,at least in part, of one or more antibacterial materials. In oneexample, the antibacterial material can be a plastic, such as apolycarbonate plastic, with a silver additive integrated into theplastic material. In another embodiment, the silver additive can killbacteria that may adhere to the exterior surface of the wirelesstransfer station case. In another embodiment, the wireless transferstation case can comprise, at least in part, of ultraviolet (UV) lightresilient material (such as a polycarbonate plastic or fiberglass) toenable the repeated use of UV light to kill bacteria adhering to theexterior surface of the battery pack case.

Traditional battery packs also have a risk of electrical shortcircuiting. In one example, a traditional battery pack has a negativeenergy terminal and a positive energy terminal. A conductive object thatcontacts both the negative energy terminal and the positive energyterminal of the traditional battery pack can cause an electrical short.Another advantage of the wireless transfer station with integratedwireless transfer coils for transferring energy can be a reduction orelimination of the risk of electrical shorting through eliminatingphysical electrical contacts of the wireless transfer station. In oneexample, the wireless transfer station with integrated wireless transfercoils can transfer energy and/or data without using physical terminalcontacts and thereby eliminate traditional physical terminal contactsthat cause electrical shorts.

FIG. 27 shows an exploded view of a battery pack 2710 for one or morebatteries 2720. In one embodiment, the battery pack 2710 can include abattery pack housing 2730 with an inner cavity 2740. In anotherembodiment, the battery pack 2710 can include a battery bay 2750 locatedwithin the inner cavity 2740. In another embodiment, the battery bay2750 can contain a plurality of individual battery cells 2720 in thebattery bay 2750 and a shielding receptacle 2760. In another embodiment,the shielding receptacle 2760 can be sized and shaped to receive theplurality of individual battery cells 2720 and separate each of theplurality of individual battery cells 2720 from adjacent individualbattery cells. In another embodiment, the shielding receptacle 2760 cancomprise a material having a heat deflection rate of greater than 50degrees Celsius to contain a catastrophic thermal runaway of one or moreof the plurality of individual battery cells 2720.

In one embodiment, the battery pack 2710 can include a power managementmodule 2762 configured to regulate an amount of energy received at oneor more of the plurality of individual battery cells 2720 and regulatean amount of energy transferred from one or more of the plurality ofindividual battery cells 2720 to a device. In another embodiment, theshielding receptacle 2760 can include enclosed containers 2764 for oneor more of the plurality of individual battery cells 2720. In anotherembodiment, the battery pack housing 2730 or the shielding receptacle2760 can further comprise: a Kevlar disc to dissipate heat caused by thecatastrophic runaway of the one or more of the plurality of individualbattery cells 2720; a one-way perforated label to release pressurecaused by the catastrophic runaway of the one or more of the pluralityof individual battery cells 2720 and repel liquid and dust; and apressure release valve to release pressure from one or more of theplurality of individual battery cells 2720, wherein the pressure iscaused by the catastrophic runaway of the one or more of the pluralityof individual battery cells 2720.

In one embodiment, the one-way perforated label or the pressure releasevalve can be configured to release pressure from the shieldingreceptacle 2760 or from the inner cavity 2740 of the battery packhousing 2730 when the pressure exceeds a selected threshold. In anotherembodiment, the battery pack housing 2730 or the shielding receptacle2760 can further comprise a one-way vent configured to release pressurefrom the shielding receptacle 2760 or from the inner cavity 2740 of thebattery pack housing 2730 when the pressure exceeds a selectedthreshold. In another embodiment, the battery pack 2710 can furthercomprise a liquid cooling system to manage: an internal temperature ofthe battery pack 2710; an internal temperature of the shieldingreceptacle 2760; a temperature of one or more battery cells of theplurality of individual battery cells 2720; or the power managementmodule 2762. In another embodiment, the battery pack 2710 can furthercomprise a temperature sensor configured to: monitor an internaltemperature of the battery pack 2710, an internal temperature of theshielding receptacle 2760, or a temperature of one or more battery cellsof the plurality of individual battery cells 2720; and provide anindication of an increase in the internal temperature of the batterypack 2710, an internal temperature of the shielding receptacle 2760, ora temperature of one or more battery cells of the plurality ofindividual battery cells 2720 when the increase exceeds a selectedthreshold.

In another embodiment, the battery pack 2710 can further comprise: athermal runaway detector to detect a thermal runaway of one or morebattery cells of the plurality of individual battery cells 2720; and acurrent interrupt device (CID), a chemical fuse, or polymeric positivetemperature coefficient (PPTC) device to interrupt a current provided tothe one or more battery cells of the plurality of individual batterycells 2720. In another embodiment, the battery pack housing 2730 canfurther comprise a substantially flat surface, wherein: the one or morewireless transfer coils 2780 are attached to the substantially flatsurface or integrated into the substantially flat surface; and thesubstantially flat surface of the battery pack housing 2730 can beconfigured to abut a substantially flat surface of a wireless transferstation.

In one embodiment, the battery pack 2710 can further comprise an energymodule 2790 configured to: wirelessly receive alternating current (AC)energy from the wireless transfer station; convert the AC energy todirect current (DC) energy; and transfer a selected amount of the DCenergy to one or more of the plurality of individual battery cells 2720.In another embodiment, the battery pack 2710 can further comprise apower management bay 2792 located within the inner cavity 2740 of thebattery pack housing 2730 and at a location separate from the batterypack bay 2750 and comprise a power management module 2762 to regulateenergy transferred between one or more of the plurality of individualbattery cells 2720 and a wireless transfer station or a device. Inanother embodiment, the battery pack 2710 can further comprise one ormore connecting links between the power management module 2762 and oneor more of the plurality of individual battery cells 2720, and whereinthe power management module 2762 can be configured to use the one ormore connecting links to monitor a charging of the one or more of theplurality of individual battery cells 2720. In one example, the one ormore connecting links can be one or more wires or cables.

FIG. 28 shows an exploded view of a battery pack 2810 for one or morerechargeable batteries 2820. In one embodiment, the battery pack 2810can include: a battery pack housing 2830 with an inner cavity 2840; anda battery cell shielding receptacle 2860 located within the inner cavity2840 of the battery pack housing 2830. In another embodiment the batterycell shielding receptacle 2860 can be sized and shaped to receive aplurality of individual battery cells 2820 and separate each of theplurality of individual battery cells 2820 from adjacent individualbattery cells; and comprising a material having a heat deflection rateof greater than 50 degrees Celsius to contain a catastrophic runaway ofone or more of the plurality of individual battery cells 2820. In oneembodiment, the battery pack housing 2830 can be hermetically sealed tobe liquid-proof and dust-proof or sealed to be substantiallyliquid-proof and dust-proof. In one embodiment, the battery pack housing2830 can include components in the battery pack housing 2830 that arehermetically sealed to be liquid proof and dust proof or sealed to besubstantially liquid proof and dust proof.

In one embodiment, the hermetically sealed battery pack 2810 can furthercomprise a pressure seal configured to release pressure from the batterypack housing 2830 when the pressure exceeds a selected threshold. Inanother embodiment, the battery pack housing 2830 or the components inthe battery pack housing 2830 are sealed using: an injection material,wherein the injection material is injected into the battery pack housing2830; or one or more gaskets around one or more seams of the batterypack housing 2830. In another embodiment, the battery pack housing 2830can further comprise anti-bacterial material to decrease or eliminate agrowth or adhesion of pathogens on the battery pack housing 2830. Inanother embodiment, the anti-bacterial and chemical resistive materialcan be a polycarbonate plastic with a silver anti-bacterial additive. Inanother embodiment, the shielding receptacle 2860 can further comprise acavity or recess configured to receive a portion of one or more batterycells of the plurality of individual battery cells 2820 as the one ormore battery cells expand or swell. In another embodiment, the shieldingreceptacle 2860 can further comprise a flexible material or an expandingmaterial configured to expand as one or more battery cells of theplurality of individual battery cells 2820 expand or swell.

FIG. 29 shows an exploded view of a thermally shielded receptacle 2910for a rechargeable battery 2920. In one embodiment, the thermallyshielded receptacle 2910 can comprise: a material having a heatdeflection rate of greater than 50 degrees Celsius to contain acatastrophic runaway of one or more of a plurality of individual batterycells 2920; and the material sized and shaped to receive the pluralityof individual battery cells 2920 and separate each of the plurality ofindividual battery cells 2920 from adjacent individual battery cells.

In one embodiment, the thermally shielded receptacle 2910 can furthercomprise a layer of heat deflecting material coating an inner surface2930 of one or more of the shielding receptacles 2940. In anotherembodiment, the thermally shielded receptacle 2910 can further comprisea thermally conductive material or a phase changing material to absorbheat of greater than 50 degrees Celsius caused by a catastrophic runawayof one or more of the plurality of individual battery cells 2920. Inanother embodiment, the thermally shielded receptacle 2910 can furthercomprise a heat shield. In another embodiment, the thermally shieldedreceptacle 2910 can further comprise a plurality of shieldingreceptacles 2940 having a honeycomb structure. In another embodiment, asection of the plurality of shielding receptacles 2940 can be offsetfrom another section of the plurality of shielding receptacles 2940 inthe honeycomb structure of the thermally shielded receptacle 2910.

FIG. 30 provides an example illustration of the device, such as a userequipment (UE), a mobile wireless device, a mobile communication device,a tablet, a handset, or other type of wireless device. The wirelessdevice can include one or more antennas configured to communicate with abattery pack. The device can be configured to communicate using at leastone wireless communication standard including 3GPP LTE, WiMAX, HighSpeed Packet Access (HSPA), Bluetooth, and Wi-Fi. The device cancommunicate using separate antennas for each wireless communicationstandard or shared antennas for multiple wireless communicationstandards. The device can communicate in a wireless local area network(WLAN), a wireless personal area network (WPAN), and/or a wireless widearea network (WWAN).

FIG. 30 also provides an illustration of a microphone and one or morespeakers that can be used for audio input and output from the device.The display screen can be a liquid crystal display (LCD) screen, orother type of display screen such as an organic light emitting diode(OLED) display. The display screen can be configured as a touch screen.The touch screen can use capacitive, resistive, or another type of touchscreen technology. An application processor and a graphics processor canbe coupled to internal memory to provide processing and displaycapabilities. A non-volatile memory port can also be used to providedata input/output options to a user. The non-volatile memory port canalso be used to expand the memory capabilities of the device. A keyboardcan be integrated with the device or wirelessly connected to thewireless device to provide additional user input. A virtual keyboard canalso be provided using the touch screen.

Various techniques, or certain aspects or portions thereof, can take theform of program code (i.e., instructions) embodied in tangible media,such as floppy diskettes, CD-ROMs, hard drives, non-transitory computerreadable storage medium, or any other machine-readable storage mediumwherein, when the program code is loaded into and executed by a machine,such as a computer, the machine becomes an apparatus for practicing thevarious techniques. In the case of program code execution onprogrammable computers, the computing device can include a processor, astorage medium readable by the processor (including volatile andnon-volatile memory and/or storage elements), at least one input device,and at least one output device. The volatile and non-volatile memoryand/or storage elements can be a RAM, EPROM, flash drive, optical drive,magnetic hard drive, or other medium for storing electronic data. Thebase station and mobile station can also include a transceiver module, acounter module, a processing module, and/or a clock module or timermodule. One or more programs that can implement or utilize the varioustechniques described herein can use an application programming interface(API), reusable controls, and the like. Such programs can be implementedin a high level procedural or object oriented programming language tocommunicate with a computer system. However, the program(s) can beimplemented in assembly or machine language, if desired. In any case,the language can be a compiled or interpreted language, and combinedwith hardware implementations.

It should be understood that many of the functional units described inthis specification have been labeled as modules, in order to moreparticularly emphasize their implementation independence. For example, amodule can be implemented as a hardware circuit comprising custom VLSIcircuits or gate arrays, off-the-shelf semiconductors such as logicchips, transistors, or other discrete components. A module can also beimplemented in programmable hardware devices such as field programmablegate arrays, programmable array logic, programmable logic devices or thelike.

Modules can also be implemented in software for execution by varioustypes of processors. An identified module of executable code can, forinstance, comprise one or more physical or logical blocks of computerinstructions, which can, for instance, be organized as an object,procedure, or function. Nevertheless, the executables of an identifiedmodule need not be physically located together, but can comprisedisparate instructions stored in different locations which, when joinedlogically together, comprise the module and achieve the stated purposefor the module.

Indeed, a module of executable code can be a single instruction, or manyinstructions, and can even be distributed over several different codesegments, among different programs, and across several memory devices.Similarly, operational data can be identified and illustrated hereinwithin modules, and can be embodied in any suitable form and organizedwithin any suitable type of data structure. The operational data can becollected as a single data set, or can be distributed over differentlocations including over different storage devices, and can exist, atleast partially, merely as electronic signals on a system or network.The modules can be passive or active, including agents operable toperform desired functions.

Reference throughout this specification to “an example” means that aparticular feature, structure, or characteristic described in connectionwith the example is included in at least one embodiment of the presentinvention. Thus, appearances of the phrases “in an example” in variousplaces throughout this specification are not necessarily all referringto the same embodiment.

As used herein, a plurality of items, structural elements, compositionalelements, and/or materials can be presented in a common list forconvenience. However, these lists should be construed as though eachmember of the list is individually identified as a separate and uniquemember. Thus, no individual member of such list should be construed as ade facto equivalent of any other member of the same list solely based ontheir presentation in a common group without indications to thecontrary. In addition, various embodiments and example of the presentinvention can be referred to herein along with alternatives for thevarious components thereof. It is understood that such embodiments,examples, and alternatives are not to be construed as defactoequivalents of one another, but are to be considered as separate andautonomous representations of the present invention.

Furthermore, the described features, structures, or characteristics canbe combined in any suitable manner in one or more embodiments. In thefollowing description, numerous specific details are provided, such asexamples of layouts, distances, network examples, etc., to provide athorough understanding of embodiments of the invention. One skilled inthe relevant art will recognize, however, that the invention can bepracticed without one or more of the specific details, or with othermethods, components, layouts, etc. In other instances, well-knownstructures, materials, or operations are not shown or described indetail to avoid obscuring aspects of the invention.

While the forgoing examples are illustrative of the principles of thepresent invention in one or more particular applications, it will beapparent to those of ordinary skill in the art that numerousmodifications in form, usage and details of implementation can be madewithout the exercise of inventive faculty, and without departing fromthe principles and concepts of the invention. Accordingly, it is notintended that the invention be limited, except as by the claims setforth below.

What is claimed is:
 1. A battery pack for a battery, the battery packcomprising: a battery pack housing with an inner cavity; and a batterybay located within the inner cavity, the battery bay containing: aplurality of individual battery cells in the battery bay; and ashielding receptacle: sized and shaped to receive the plurality ofindividual battery cells and separate each of the plurality ofindividual battery cells from adjacent individual battery cells; andcomprising a material having a heat deflection rate of greater than 50degrees Celsius to contain a catastrophic thermal runaway of one or moreof the plurality of individual battery cells.
 2. The battery pack ofclaim 1, further comprising a power management module configured to:regulate an amount of energy received at one or more of the plurality ofindividual battery cells; and regulate an amount of energy transferredfrom one or more of the plurality of individual battery cells to adevice.
 3. The battery pack of claim 1, wherein the shielding receptaclefurther comprises enclosed containers for one or more of the pluralityof individual battery cells.
 4. The battery pack of claim 1, wherein thebattery pack housing or the shielding receptacle further comprises: aKevlar disc to dissipate heat caused by the catastrophic runaway of theone or more of the plurality of individual battery cells; a one-wayperforated label to release pressure caused by the catastrophic runawayof the one or more of the plurality of individual battery cells andrepel liquid and dust; and a pressure release valve to release pressurefrom one or more of the plurality of individual battery cells, whereinthe pressure is caused by the catastrophic runaway of the one or more ofthe plurality of individual battery cells.
 5. The battery pack of claim4, wherein the one-way perforated label or the pressure release valve isconfigured to release pressure from the shielding receptacle or from theinner cavity of the battery pack case when the pressure exceeds aselected threshold.
 6. The battery pack of claim 1, wherein the batterypack housing or the shielding receptacle further comprises a one-wayvent configured to release pressure from the shielding receptacle orfrom the inner cavity of the battery pack case when the pressure exceedsa selected threshold.
 7. The battery pack of claim 2, further comprisinga liquid cooling system to manage: an internal temperature of thebattery pack; an internal temperature of the shielding receptacle; atemperature of one or more battery cells of the plurality of individualbattery cells; or the power management module.
 8. The battery pack ofclaim 1, further comprising a temperature sensor configured to: monitoran internal temperature of the battery pack, an internal temperature ofthe shielding receptacle, or a temperature of one or more battery cellsof the plurality of individual battery cells; and provide an indicationof an increase in the internal temperature of the battery pack, aninternal temperature of the shielding receptacle, or a temperature ofone or more battery cells of the plurality of individual battery cellswhen the increase exceeds a selected threshold.
 9. The battery pack ofclaim 1, further comprising: a thermal runaway detector to detect athermal runaway of one or more battery cells of the plurality ofindividual battery cells; and a current interrupt device (CID), achemical fuse, or polymeric positive temperature coefficient (PPTC)device to interrupt a current provided to the one or more battery cellsof the plurality of individual battery cells.
 10. The battery pack ofclaim 1, wherein the battery pack housing further comprises asubstantially flat surface, wherein: the one or more wireless transfercoils are attached to the substantially flat surface or integrated intothe substantially flat surface; and the substantially flat surface ofthe battery pack housing is configured to abut a substantially flatsurface of a wireless transfer station.
 11. The battery pack of claim 1,wherein the battery pack further comprises a energy module configure to:wirelessly receive alternating current (AC) energy from the wirelesstransfer station; convert the AC energy to direct current (DC) energy;and transfer a selected amount of the DC energy to one or more of theplurality of individual battery cells.
 12. The battery pack of claim 1,further comprising a power management bay: located within the innercavity of the battery pack housing and at a location separate from thebattery pack bay; and comprising a power management module to regulateenergy transferred between one or more of the plurality of individualbattery cells and a wireless transfer station or a device.
 13. Thebattery pack of claim 12, further comprising one or more connectinglinks between the power management module and one or more of theplurality of individual battery cells, and wherein the power managementmodule is configured to use the one or more connecting links to monitora charging of one or more of the plurality of individual battery cells.14. A battery pack for a rechargeable battery, comprising: a batterypack housing with an inner cavity; and a battery cell shieldingreceptacle located within the inner cavity of the battery pack housing,the battery cell shielding receptacle: sized and shaped to receive aplurality of individual battery cells and separate each of the pluralityof individual battery cells from adjacent individual battery cells; andcomprising a material having a heat deflection rate of greater than 50degrees Celsius to contain a catastrophic runaway of one or more of theplurality of individual battery cells.
 15. The battery pack of claim 14,wherein: the battery pack housing is hermetically sealed to be liquidproof and dust proof or sealed to be substantially liquid proof and dustproof; or components in the battery pack housing are hermetically sealedto be liquid proof and dust proof or sealed to be substantially liquidproof and dust proof.
 16. The battery pack of claim 15, wherein thehermetically sealed battery pack further comprises a pressure sealconfigured to release pressure from the battery pack housing when thepressure exceeds a selected threshold.
 17. The battery pack of claim 15,wherein the battery pack housing or the components in the battery packhousing are sealed using: an injection material, wherein the injectionmaterial is injected into the battery pack housing; or one or moregaskets around one or more seams of the battery pack housing.
 18. Thebattery pack of claim 14, wherein the battery pack housing furthercomprises anti-bacterial material to decrease or eliminate a growth oradhesion of pathogens on the battery pack housing.
 19. The battery packof claim 18, wherein the anti-bacterial and chemical resistive materialis a polycarbonate plastic with a silver anti-bacterial additive. 20.The battery pack of claim 14, wherein the shielding receptacle furthercomprises a cavity or recess configured to receive a portion of one ormore battery cells of the plurality of individual battery cells as theone or more battery cells expand or swell.
 21. The battery pack of claim14, wherein the shielding receptacle further comprises a flexible orexpanding material configured to expand as one or more battery cells ofthe plurality of individual battery cells expands or swells.
 22. Athermally shielded receptacle for a rechargeable battery, the thermallyshielded receptacle comprising: a material having a heat deflection rateof greater than 50 degrees Celsius to contain a catastrophic runaway ofone or more of a plurality of individual battery cells; and the materialsized and shaped to receive the plurality of individual battery cellsand separate each of the plurality of individual battery cells fromadjacent individual battery cells.
 23. The thermally shielded receptacleof claim 22, further comprising one or more shielding compartments toreceive the plurality of individual battery cells.
 24. The thermallyshielded receptacle of claim 23, wherein the one or more shieldingcompartments further comprises a layer of heat deflecting materialcoating an inner surface of one or more of the shielding compartments.25. The thermally shielded receptacle of claim 23, wherein the shieldingcompartments further comprises a thermally conductive material or aphase changing material to absorb heat of greater than 50 degreesCelsius caused by a catastrophic runaway of one or more of the pluralityof individual battery cells.
 26. The thermally shielded receptacle ofclaim 23, wherein the one or more shielding compartments furthercomprise a heat shield.
 27. The thermally shielded receptacle of claim23, wherein the thermally shielded receptacle further comprises the oneor more shielding compartments having a honeycomb structure.
 28. Thethermally shielded receptacle of claim 27, wherein a section of theplurality of shielding compartments is offset from another section ofthe plurality of shielding compartments in the honeycomb structure ofthe thermally shielded receptacle.